Cardiovascular System

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Across
  1. 3. four chambers of the heart are separated by partitions
  2. 4. high blood pressure
  3. 7. largest artery in the body
  4. 9. small vein
  5. 10. two upper chambers
  6. 13. area of dead tissue
  7. 14. open
  8. 15. two lower chambers
  9. 16. beat of the heart as felt through the walls of arteries
  10. 17. extra heart sound, heard between normal beats
  11. 18. arteries that supply blood to the head and neck
Down
  1. 1. relaxation
  2. 2. rapid but irregular contractions
  3. 3. contraction
  4. 5. inner lining of the heart
  5. 6. pacemaker of the heart
  6. 8. small, pinpoint hemorrhages
  7. 11. local widening of an arterial wall
  8. 12. smallest blood vessel
  9. 15. cava largest vein in the body